Installing the Control System
2.4 ENC and operator panel power supply (X1)
2-35
SINUMERIK 802C
6FC5 597–3AA20–0BP2 (01.02)
2.4 ENC and operator panel power supply (X1)
Screw–type terminal block
The 24 V DC load power supply unit required for supplying ENC and operator terminal is con-
nected to screw–type terminal block X1.
Characteristics of the load power supply
The 24 V DC voltage must be generated as a functional extra–low voltage with safe electrical
isolation (to IEC 204-1, Section 6.4, PELV).
Table 2-19 Electrical parameters of the load power supply
Parameter
Min. Max. Units Conditions
Voltage range mean value 20.4 28.8 V
Ripple 3.6 Vss
Non–periodic overvoltage 35 V
500 ms cont.
50 s recovery
Rated current consumption 1 A
Starting current 2.6 A
Pin connector assignment on the ENC side
Table 2-20 Pin connector assignment of screw–type ter-
minal
block X1
Terminal
1 PE PE
2 M Ground
3 L+ DC 24 V
4 M Ground
The contacts 2/4 are connected internally in the device.
Operator panel
The operator panel does not possess a separate power supply connection. It is powered from
the ENC via the signal cables.
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